Sarah's Cottage is a corner location situated between the 9th Milestone and 10th Milestone road-side markers on the Snaefell Mountain Course used for the Isle of Man TT Races. Sarah's Cottage was part of the old St. John's Short Course used between 1907 and 1910 and part of the Snaefell Mountain Course used since 1911 for the Isle of Man TT Races and Manx Grand Prix.

A point on the TT Course mentioned in every commentary is "Sarah's Cottage" and questions are often asked about the identity of the lady whose name is known in many parts of the world through the TT broadcasts. Sarah Corlett was quite a well-known person from Cronk Dhoo in the Parish of German and she went to live in the cottage on Creg Willeys Hill in about 1900, with her young son. Travellers going "The Long Round" passed by in horse-drawn carriers and later by Charabanc or waggonette from Douglas to Ramsey, many residents on the route provided food and by the roadside to travellers and the stop at Creg Willey's Hill by Sarah Corlett's cottage was a popular one for refreshments, fruit, postcards etc. After the TT Races began to use this course Sarah still found the shop quite profitable as many viewers congregated around this point to watch the races and she also had a winter trade as children from the many hill farms who attended the Cronk-y-Voddy School, would pass by.

Cronk-y-Voddy was the last school on the Isle of Man to teach Manx Gaelic and a good deal of the old tongue remained especially in nicknames, so Sarah Corlett was known to the children as Sarah Viljyn ('Sarah of the Sweets'). Sarah kept the little shop going until her death in the 1930's

Sarah's Cottage is known simply as 'Sarah's by the many motorcycle enthusiasts who use the garden as a vantage point.

It is a great viewing point for watching the Bikes speed up the hill from Glen Helen before sweeping the right bend at Sarah's and opening up the throttle heading up towards the Cronk-y-Voddy straight. The cottage was derelict until late 1975 when James Henry Shuttleworth and his wife Betty from Wirral, arrived and totally renovated it and carried on the tradition of selling refreshments to passers by and taking in Bed & Breakfast guests.

Betty sadly died in 1988. James, known as Jim carried on taking in guests and selling refreshments to TT Race Fans until the mid 1990's. Jim then finally 'retired' and occupied Sarah's until he passed away peacefully at the grand old age of 95 years old in October 2004. Following his funeral at St Johns, Jim did a final lap of the TT Course and recorded the slowest lap speed of all.

Their son Roy and his wife Alma have commpletely refurbished the cottage in order to carry on the tradition of Guest Accommodation.